Triethylamine → 3-(4-Chloro-6-fluoro-2-isocyanato-3-methylphenyl)-1-methyl-6-trifluoromethyl-2,4(1H, 3H)-pyrimidinedione

HRID 277426Notes

Reaction equation

HRID 277426 reaction equation
[NH2:1][C:2]1[C:7]([CH3:8])=[C:6]([Cl:9])[CH:5]=[C:4]([F:10])[C:3]=1[N:11]1[C:16](=[O:17])[CH:15]=[C:14]([C:18]([F:21])([F:20])[F:19])[N:13]([CH3:22])[C:12]1=[O:23].C(N(CC)CC)C.Cl[C:32](Cl)([O:34]C(=O)OC(Cl)(Cl)Cl)Cl>C(OCC)(=O)C>[Cl:9][C:6]1[CH:5]=[C:4]([F:10])[C:3]([N:11]2[C:16](=[O:17])[CH:15]=[C:14]([C:18]([F:21])([F:20])[F:19])[N:13]([CH3:22])[C:12]2=[O:23])=[C:2]([N:1]=[C:32]=[O:34])[C:7]=1[CH3:8]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 94429TriphosgeneHCID 865859023-(2-amino-4-chloro-6-fluoro-3-methylphenyl)-1-methyl-6-trifluoromethyl-2,4(1H, 3H)-pyrimidinedione

Product 1

HCID 865859043-(4-Chloro-6-fluoro-2-isocyanato-3-methylphenyl)-1-methyl-6-trifluoromethyl-2,4(1H, 3H)-pyrimidinedione

Reagents, catalysts & solvents 1

HCID 8857Ethyl AcetateSolvent2×

Procedure

3-(2-Amino-4-chloro-6-fluoro-3-methylphenyl)-1-methyl-6-trifluoromethyl-2,4(1H, 3H)-pyrimidinedione (1.0 g, 2.9 mmol) and triethylamine (0.58 g, 5.7 mmol) were dissolved in ethyl acetate (15 ml) and the solution was slowly added to a solution of triphosgene (0.85 g, 2.9 mmol) in ethyl acetate (15 ml). Solution was heated under reflux for 2 hr and filtered. Solvent was evaporated to afford the title compound as a residue which was used for the next step.

Workup

  1. temperatureSolution was heated
  2. temperatureunder reflux for 2 hr
  3. filtrationfiltered
  4. customSolvent was evaporated

Sources & evidence

ORD record
ord-2d3dd9f430534839b228650a3886d48f
Source dataset
uspto-grants-2002_03
Patent number
US06355799B1

Reaction notes

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